25015541459 has 2 divisors, whose sum is σ = 25015541460. Its totient is φ = 25015541458.

The previous prime is 25015541443. The next prime is 25015541477. The reversal of 25015541459 is 95414551052.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25015541459 - 2⁴ = 25015541443 is a prime.

It is not a weakly prime, because it can be changed into another prime (25015541479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12507770729 + 12507770730.

It is an arithmetic number, because the mean of its divisors is an integer number (12507770730).

Almost surely, 2^25015541459 is an apocalyptic number.

25015541459 is a deficient number, since it is larger than the sum of its proper divisors (1).

25015541459 is an equidigital number, since it uses as much as digits as its factorization.

25015541459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180000, while the sum is 41.

The spelling of 25015541459 in words is "twenty-five billion, fifteen million, five hundred forty-one thousand, four hundred fifty-nine".